/*
 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
 *
 * Neither the name of Sun Microsystems, Inc. or the names of
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 * EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES
 * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN
 * OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
 * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR
 * PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF
 * LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE,
 * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 *
 * You acknowledge that Software is not designed, licensed or intended
 * for use in the design, construction, operation or maintenance of
 * any nuclear facility.
 */

package ar.edu.unicen.exa.aop.aopetstore.waf.view.taglibs.smart;

import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;

import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.tagext.BodyTagSupport;

/**
 * HTML 'select' tag.
 */
@SuppressWarnings("serial")
public class SelectTag extends BodyTagSupport {

    Map<String, String> options = new TreeMap<String, String>();
    String selectedValue = null;
    int size = 0;
    String name = null;
    boolean isEditable = true;

    public void setSelectedValue(String sv) { selectedValue = sv; }

    public void setSize(int s) { size = s; }

    public void setName(String n) { name = n; }

    public void setEditable(boolean e) { isEditable = e; }

    public void putOption(String value, String text) {
        options.put(value, text);
    }

    public int doStartTag() throws JspTagException {
        return EVAL_BODY_BUFFERED;
    }

    public int doEndTag() throws JspTagException {
        try {
            StringBuffer html = new StringBuffer();

            if (isEditable) {
                html.append("<select");
                html.append(size > 0 ? (" size=\"" + size + "\"") : "");
                html.append(" name=\"" + name + "\">");
                Iterator<String> it = options.keySet().iterator();
                while (it.hasNext()) {
                    String value = it.next();
                    String text = options.get(value);
                    html.append("<option value=\"" + value + "\"");
                    html.append(value.equals(selectedValue)
                                ? " selected>"
                                : ">");
                    html.append(text);
                    html.append("</option>");
                }
                html.append("</select>");
            }
            else {
                html.append(options.get(selectedValue).toString());
            }
            pageContext.getOut().print(html.toString());
            return EVAL_PAGE;
        }
        catch (IOException e) {
            throw new JspTagException("LinkTag: " + e.getMessage());
        }
        finally{
            // reset
            options = null;
            options = new TreeMap<String, String>();
            selectedValue = null;
            size = 0;
            name = null;
            isEditable = true;
        }
    }
}

